- John Howard
- Captain Hugh C. Drummond
- Heather Angel
- Phyllis Clavering
- H.B. Warner
- Colonel Nielsen
- Reginald Denny
- Algy Longworth
- E.E. Clive
- Tenny
- Jean Fenwick
- Lady Beryl Ledyard
- Zeffie Tilbury
- Aunt Meg
- George Zucco
- Rolf Alferson
- Leonard Mudie
- Richard Gannett
- Evan Thomas
- Smith
- Clyde Cook
- Constable Sacker
- David Clyde
- Constable McThane
- George Regas
- Soongh
- Neil Fitzgerald
- Sir Malcolm McLeonard
- Claud Allister
- Sir Basil Leghorne
- Jimmy Aubrey
- Steward
- Frank Baker
- Cop
- Kathryn Bates
- Tourist
- Billy Bevan
- Aquarium Guard
- Dolores Casey
- Undetermined Secondary Role
- Steve Clemente
- Native Buying Rifle
- Neil Craig
- Tourist
- Sheila Darcy
- Undetermined Secondary Role
- John Davidson
- Gumba - Bird Seller
- Harold Garrison
- Native Boy with Message
- Forrester Harvey
- Constable Severn--Outside Gannett House
- Grace Hayle
- Tourist
- Olaf Hytten
- Island Police Arresting Sergeant
- Eugene Jackson
- Hotel Page Boy
- Frank Lackteen
- Native Selling Rifle
- Joyce Mathews
- Undetermined Secondary Role
- Hercules Mendez
- Foreign Agent
- Ferdinand Munier
- Old Maj. Trumleigh
- Gerald Rogers
- Island Police Desk Sergeant
- John Rogers
- Guggins
- Ruth Rogers
- Maid
- Sam Savitsky
- Foreign Agent
- John Sutton
- Inspector Tredennis
